Motorola MVME197LE - Manual (Page 17)

Specifications
MVME197LE/D2 1-3
1
❏ 128 or 256 kilobytes of BOOT ROM
❏ Six 32-bit tick timers for periodic interrupts
❏ Watchdog timer
❏ Eight software interrupts
❏ I/O
– SCSI Bus interface with Direct Memory Access (DMA)
– Four serial ports with EIA-232-D buffers
– Centronics printer port
– Ethernet transceiver interface
❏ VMEbus interface
– VMEbus system controller functions
– VMEbus interface to local peripheral bus (A24/A32, D8/D16/D32
BLT (D8/D16/D32/D64))(BLT = Block Transfer)
– Local peripheral bus to VMEbus interface (A24/A32, D8/D16/D32
BLT (D16/D32/D64))
– VMEbus interrupter
– VMEbus interrupt handler
– Global CSR for inter-processor communications
– DMA for fast local memory - VMEbus transfers (A16/A24/A32,
D16/D32 BLT (D16/D32/D64))
Specifications
The specifications for the MVME197LE are listed in Table 1-1.
Table 1-1. MVME197LE Specifications
Characteristics Specifications
Power requirements
Operating temperature
(refer to the Cooling
Requirements section)
Storage temperature
Relative humidity
+5 Vdc (
±
2.5%), 4 A (typical), 5 A (maximum)
+12 Vdc (
±
2.5%), 100 mA (maximum)
-12 Vdc (
±
2.5%), 100 mA (maximum)
0° to 55° C at point of entry of forced air
(approximately 490 LFM)
-40° to 85° C
5% to 90% (non-condensing)